wylex 45a breaker

[ban-all-sheds]

He can.

But he might be a while before he gets to use his new shower...

 

[Landycap]

New Consumer Unit then.
Thanks to all you guys who gave your time to reply.

 

[ajrobb]

Now you can ask about the balance between the number of RCDs, MCBs and RCBOs.

 

[Landycap]

...and the balance is...(including a 45A breaker)?

 

[ajrobb]

How much do you want to spend?

RCBOs on each circuit are better than shared RCDs but (4x) more expensive. The CU is better with a few extra slots to leave space for all the extra RCBO wires. It is possible to get 5 RCBOs into a 5-slot CU but it makes testing difficult.

However, for the shower circuit, the OSG doesn't list circuit breakers or RCBOs as an option for 45A. As mfarrow pointed out, you might need to allow for separate RCD and cartridge fuse.

 

[mfarrow]

40A devices burn out wylexs for fun.

Devices over 30A come with a little tab which means they cannot physically fit into under-rated boards. However these are easily snapped off.

 

[Landycap]

Don't have a big budget, not me spending.
I don't understand all your sparky lingo to be honest.
Can you do this in laymens terms?
I agree I need a new consumer unit but can you recommend one that will suffice/support a breaker that will supply this 9.5kw shower.
Just checked in a neighbouring property and they have a 50A breaker for their electric shower (9.5Kw).

 

[ajrobb]

Split consumer unit with 2 RCDs. If there are 2 light circuits put them on different RCDs. Likewise for sockets. Get a 45A cartridge fuse for shower, type C MCBs for lights and type B for everything else ???

 

[Landycap]

Cheers ajrobb.
Understand all of that.
Can I put a cartridge fuse in a new consumer unit that carries breakers?

 

[Spark123]

Why would you want to?
Just get the correct size breaker. TBH, it would be safer for you to employ an electrician to replace the consumer unit.